Door lock

Abstract

A locking mechanism is provided for doors carried on one or more tracks. The mechanism includes a first member for lodgement in the track, a second member for lodgement outside the track and linkage for drawing the first and second members toward each other to lock the track therebetween.

I claim: 
     
       1. A locking device for use with a track mounted door, comprising; (a) a first member, the first member being formed as an elongated bar having a longitudinal axis;   (b) a second member, the second member being formed as having a longitudinal axis;   (c) an arm, the arm being integrally formed as a longitudinally tapered portion and rounded segment, the longitudinally tapered portion and the rounded segment being oppositely disposed; and   (d) interconnecting means, the interconnecting means linking the first member and the second member such that rotation of the arm urges the first member toward the second member, said interconnecting means comprising a plate, and a partially-threaded rod, the plate being rigidly mounted to the arm, and containing a centrally-located orifice, the rod being rigidly attached to the first member, the rod passing through the centrally-located orifice, the rod being confined within the orifice by a nut such that by adjusting the nut a particular dimensional relationship is established between the first member and the second member when the arm is rotated into a locked position.   
     
     
       2. The locking device of claim 1, wherein the plate is of a substantially-rectangular shape, the plate residing in a plane that is substantially perpendicular to the arm, the plane of the plate being inclined to the longitudinally-tapered portion of the arm by an angle of approximately 25 degrees to 65 degrees. 
     
     
       3. The locking device of claim 2, wherein the rod is inclined with respect to the longitudinal axis of the first member at an angle of between 15 degrees and 70 degrees. 
     
     
       4. The locking device of claim 2, wherein the longitudinally-tapered portion of the arm has a narrow end, the narrow end being fitted with a post, said post serving to control rotation of said arm, means associated with said post to selectively lock said arm in place. 
     
     
       5. The locking device of claim 4 further comprising a retaining strap, the retaining strap being pivotably attached to the second member, the retaining strap being adapted to engage the post when the first and second member are in a locked position. 
     
     
       6. The locking device of claim 5, wherein the rotating strap contains a notch, the notch being adapted to engage the post on the arm to as to prevent rotation of the arm. 
     
     
       7. The locking device of claim 1 wherein said first member includes a pin for engagement with a door track thereby preventing said first member from sliding along said track.